Results Of "National Speed" Dyno Day (12/19)
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Joined: Mar 2002
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From: Holly Ridge, N.C.
Yeah Mark,...that's about right.
No offense to anyone here, but I have seen ALOT of the Duramax engines "go south" when the power is cranked way up on them. Buck and Jess Spruill's Duramax is a good examlpe of that and so is Clint Cannons 2005 Chevy D'Max. They have both had many engines in them. Those trucks can make some power though, I will admit that but I don't think the 6.6 Duramax has the reliability of the 5.9 Cummins.
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